EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C16955000 Simazine-2-hydroxy, 25mg Price on request 8911.14-100-T 3-Methyl-2,2',4,6'-tetrachlorodiphenylmethane Price on request 92205 n-Paraffin Mixture Price on request